1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
| unit mySpeedButton;
//Vers. 10.09.29.18.54
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, Buttons;
type
TmySpeedButton = class(TSpeedButton)
private
{ Private declarations }
FBitmapOver: TBitmap;
FBitmapOut: TBitmap;
FBitmapSelected: TBitmap;
FNumGlyphs : Integer;
// Modification des événements........................................... [partie 1]
FOnMouseEnter: TNotifyEvent;
FOnMouseLeave: TNotifyEvent;
FOnMouseDown : TNotifyEvent;
FOnMouseUp : TNotifyEvent;
FOnResize : TNotifyEvent;
// Modification des évènements............................... [partie 1-bis]
procedure SelfOnMouseEnter (Sender : TObject); //procedure complémentaire
procedure SelfOnMouseLeave (Sender : TObject); // idem
procedure SelfOnResize (Sender : TObject); // idem
procedure SelfOnMouseDown (Sender: TObject;Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure SelfOnMouseUp (Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
// Autres procedures : affectation des valeurs (dont blocage de NumGlyphs)
procedure SetNumGlyphs(Value : Integer);
procedure SetBitmapOver(Value: TBitmap);
procedure SetBitmapOut(Value: TBitmap);
procedure SetBitmapSelected(Value: TBitmap);
protected
{ Protected declarations }
public
{ Public declarations }
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
published
{ Published declarations }
property GlyphOver: TBitmap Read FBitmapOver Write SetBitmapOver;
property GlyphOut: TBitmap Read FBitmapOut Write SetBitmapOut;
property GlyphSelected:TBitmap Read FBitmapSelected Write SetBitmapSelected;
property NumGlyphs : integer read FNumGlyphs write SetNumGlyphs;
// Modification des évènements .................................. [partie 2]
property OnMouseEnter : TNotifyEvent read FOnMouseEnter write FOnMouseEnter;
property OnMouseLeave : TNotifyEvent read FOnMouseLeave write FOnMouseLeave;
property OnResize : TNotifyEvent read FOnResize write FOnResize;
property OnMouseDown : TNotifyEvent read FOnMouseDown write FOnMouseDown;
property OnMouseUp : TNotifyEvent read FOnMouseUp write FOnMouseUp;
end;
procedure Register;
implementation
procedure Register;
begin
RegisterComponents('Additional',[TmySpeedButton]);
end;
constructor Tmyspeedbutton.Create(AOwner: TComponent);
begin
Inherited Create(AOwner);
FBitmapOut := TBitmap.Create;
FBitmapOver := TBitmap.Create;
FBitmapSelected := TBitmap.Create;
FNumGlyphs := 1;
// Modification des évènements .................................. [partie 3]
FOnMouseEnter := nil;
Inherited OnMouseEnter := @SelfOnMouseEnter;
FOnMouseLeave := nil;
Inherited OnMouseLeave := @SelfOnMouseLeave;
FOnResize := nil;
Inherited OnResize := @SelfOnResize;
FOnMouseDown := nil;
Inherited OnMouseDown := @SelfOnMouseDown;
FOnMouseUp := nil;
Inherited OnMouseUp := @SelfOnMouseUp;
end;
destructor Tmyspeedbutton.Destroy;
begin
FBitmapSelected.Free;
FBitmapOver.Free;
FBitmapOut.Free;
inherited Destroy;
end;
// Modification des évènements .................................. [partie 4]
procedure Tmyspeedbutton.SelfOnMouseEnter(Sender : TObject);
begin
Self.Glyph := FBitmapOver;
//Si code OnMouseEnter alors l'exécuter
if Assigned(FOnMouseEnter) then FOnMouseEnter(Sender);
//Cette dernière ligne est à éliminer s'il s'agit d'un code de remplacement et
//non d'un code complémentaire précédant ou suivant le code de l'utilisateur.
end;
procedure Tmyspeedbutton.SelfOnMouseLeave(Sender : TObject);
begin
Self.Glyph := FBitmapOut;
if Assigned(FOnMouseLeave) then FOnMouseLeave(Sender);
end;
procedure Tmyspeedbutton.SelfOnResize(Sender : TObject);
begin
Self.Glyph := FBitmapOut;
if Assigned(FOnResize) then FOnResize(Sender);
end;
procedure Tmyspeedbutton.SelfOnMouseDown(Sender: TObject;Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
if Button <> mbLeft then
inherited
else begin
Self.Glyph := FBitmapSelected;
if Assigned(FOnMouseDown) then FOnMouseDown(Sender);
end;
end;
procedure Tmyspeedbutton.SelfOnMouseUp(Sender: TObject;Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
if Button <> mbLeft then
inherited
else begin
if (X > 0) and (X < Self.Width) and (Y > 0) and (Y < Self.Height) then
Self.Glyph := FBitmapOver
else
Self.Glyph := FBitmapOut;
if Assigned(FOnMouseUp) then FOnMouseUp(Sender);
end;
end;
// Autres procedures : affectation des valeurs (dont blocage de NumGlyphs)
procedure Tmyspeedbutton.SetNumGlyphs(Value : Integer);
begin
value := 1;
end;
procedure Tmyspeedbutton.SetBitmapOver(Value: TBitmap);
begin
FBitmapOver.Assign(value);
invalidate;
end;
procedure Tmyspeedbutton.SetBitmapOut(Value: TBitmap);
begin
FBitmapOut.Assign(value);
invalidate;
end;
procedure Tmyspeedbutton.SetBitmapSelected(Value: TBitmap);
begin
FBitmapSelected.Assign(value);
invalidate;
end;
end. |
Modifier l'évènement d'un composant
Répondre avec citation
) ?
Partager